公开(公告)号：US20070159942A1

公开(公告)日：2007-07-12

申请号：US10587913

申请日：2004-08-24

申请人： Nobuo Takeshita ,  Osamu Tsukahara ,  Tomo Kishigami

发明人： Nobuo Takeshita ,  Osamu Tsukahara ,  Tomo Kishigami

IPC分类号： G11B7/12

CPC分类号： G11B7/1267 ,  G11B7/00736 ,  G11B2007/0013

摘要： A recording method for an optical disc having at least three recording layers (11, 12, 13, 14), in which test recording areas are formed in the odd-numbered recording layers (11, 13) and the even-numbered recording layers (12, 14) in positions that are mutually non-overlapping in the thickness direction of the optical disc, the test recording areas in the odd-numbered recording layers are formed in positions mutually aligned in the thickness direction, and the test recording areas in the even-numbered recording layers are formed in positions mutually aligned in the thickness direction. The time for test recording for determining the optimal recording power can be shortened.

摘要翻译： 一种用于具有至少三个记录层（11,12,13,14）的光盘的记录方法，其中测试记录区域形成在奇数编号记录层（11,13）和偶数记录层（ 12,14）在光盘的厚度方向上彼此不重叠的位置中，奇数编号记录层中的测试记录区域形成在厚度方向上相互排列的位置，并且测试记录区域 偶数编号的记录层形成在厚度方向上相互排列的位置上。 可以缩短用于确定最佳记录功率的测试记录的时间。

公开(公告)号：US07957238B2

公开(公告)日：2011-06-07

申请号：US10541628

申请日：2004-06-04

申请人： Tomo Kishigami ,  Nobuo Takeshita ,  Osamu Tsukahara

发明人： Tomo Kishigami ,  Nobuo Takeshita ,  Osamu Tsukahara

IPC分类号： G11B20/10 ,  G11B5/09

CPC分类号： G11B7/00456 ,  G11B7/00736

摘要： A write strategy for use in recording is determined from recommended write strategy parameters recorded on an optical disk (160) and the characteristics of the optical recording device used in recording; a recommended asymmetry value is determined from the difference between the numerical aperture NA1 of the objective lens, which is a recording condition of the recommended asymmetry value recorded on the optical disk (160) and the numerical aperture NA2 of the objective lens (150) of the optical recording device used in recording, and recording is carried out on the optical disk (160) according to the write strategy and asymmetry value thus determined. Optimal recording can be carried out even on an optical disk for which the optimal write strategy information has not been determined in advance, without the need to store write strategy information suitable for each and every optical disk.

摘要翻译： 用于记录的写入策略由记录在光盘（160）上的推荐写入策略参数和记录中使用的光学记录装置的特性来确定。 根据作为记录在光盘（160）上的推荐不对称值的记录条件的物镜的数值孔径NA1与物镜（150）的数值孔径NA2之间的差确定推荐的不对称值， 根据如此确定的写入策略和不对称值，在光盘（160）上进行用于记录和记录的光记录装置。 即使在没有预先确定最佳写入策略信息的光盘上也可以进行最佳记录，而不需要存储适合于每个光盘的写入策略信息。

公开(公告)号：US07660217B2

公开(公告)日：2010-02-09

申请号：US10587913

申请日：2004-08-24

申请人： Nobuo Takeshita ,  Osamu Tsukahara ,  Tomo Kishigami

发明人： Nobuo Takeshita ,  Osamu Tsukahara ,  Tomo Kishigami

IPC分类号： G11B7/00

CPC分类号： G11B7/1267 ,  G11B7/00736 ,  G11B2007/0013

摘要： A recording method for an optical disc having at least three recording layers (11, 12, 13, 14), in which test recording areas are formed in the odd-numbered recording layers (11, 13) and the even-numbered recording layers (12, 14) in positions that are mutually non-overlapping in the thickness direction of the optical disc, the test recording areas in the odd-numbered recording layers are formed in positions mutually aligned in the thickness direction, and the test recording areas in the even-numbered recording layers are formed in positions mutually aligned in the thickness direction. The time for test recording for determining the optimal recording power can be shortened.

摘要翻译： 一种用于具有至少三个记录层（11,12,13,14）的光盘的记录方法，其中测试记录区域形成在奇数编号记录层（11,13）和偶数记录层（ 12,14）在光盘的厚度方向上彼此不重叠的位置中，奇数编号记录层中的测试记录区域形成在厚度方向上相互排列的位置，并且测试记录区域 偶数编号的记录层形成在厚度方向上相互排列的位置上。 可以缩短用于确定最佳记录功率的测试记录的时间。

公开(公告)号：US20100014401A1

公开(公告)日：2010-01-21

申请号：US12501845

申请日：2009-07-13

申请人： Nobuo Takeshita ,  Osamu Tsukahara ,  Tomo Kishigami

发明人： Nobuo Takeshita ,  Osamu Tsukahara ,  Tomo Kishigami

IPC分类号： G11B20/10

CPC分类号： G11B7/1267 ,  G11B7/00736 ,  G11B2007/0013

摘要： A recording method for an optical disc having at least three recording layers (11, 12, 13, 14), in which test recording areas are formed in the odd-numbered recording layers (11, 13) and the even-numbered recording layers (12, 14) in positions that are mutually non-overlapping in the thickness direction of the optical disc, the test recording areas in the odd-numbered recording layers are formed in positions mutually aligned in the thickness direction, and the test recording areas in the even-numbered recording layers are formed in positions mutually aligned in the thickness direction. The time for test recording for determining the optimal recording power can be shortened.

摘要翻译： 一种用于具有至少三个记录层（11,12,13,14）的光盘的记录方法，其中测试记录区域形成在奇数编号记录层（11,13）和偶数记录层（ 12,14）在光盘的厚度方向上彼此不重叠的位置中，奇数编号记录层中的测试记录区域形成在厚度方向上相互排列的位置，并且测试记录区域 偶数编号的记录层形成在厚度方向上相互排列的位置上。 可以缩短用于确定最佳记录功率的测试记录的时间。

公开(公告)号：US20060133237A1

公开(公告)日：2006-06-22

申请号：US10541628

申请日：2004-06-04

申请人： Tomo Kishigami ,  Nobuo Takeshita ,  Osamu Tsukahara

发明人： Tomo Kishigami ,  Nobuo Takeshita ,  Osamu Tsukahara

IPC分类号： G11B5/09

CPC分类号： G11B7/00456 ,  G11B7/00736

摘要： A write strategy for use in recording is determined from recommended write strategy parameters recorded on an optical disk (160) and the characteristics of the optical recording device used in recording; a recommended asymmetry value is determined from the difference between the numerical aperture NA1 of the objective lens, which is a recording condition of the recommended asymmetry value recorded on the optical disk (160) and the numerical aperture NA2 of the objective lens (150) of the optical recording device used in recording, and recording is carried out on the optical disk (160) according to the write strategy and asymmetry value thus determined. Optimal recording can be carried out even on an optical disk for which the optimal write strategy information has not been determined in advance, without the need to store write strategy information suitable for each and every optical disk.

摘要翻译： 用于记录的写入策略由记录在光盘（160）上的推荐写入策略参数和记录中使用的光学记录装置的特性来确定。 根据作为记录在光盘（160）上的推荐不对称值的记录条件和物镜（150）的数值孔径NA 2的物镜的数值孔径NA 1之间的差确定推荐的不对称值 ），并且根据如此确定的写入策略和不对称值在光盘（160）上进行记录。 即使在没有预先确定最佳写入策略信息的光盘上也可以进行最佳记录，而不需要存储适合于每个光盘的写入策略信息。

公开(公告)号：US08004943B2

公开(公告)日：2011-08-23

申请号：US12501845

申请日：2009-07-13

申请人： Nobuo Takeshita ,  Osamu Tsukahara ,  Tomo Kishigami

发明人： Nobuo Takeshita ,  Osamu Tsukahara ,  Tomo Kishigami

IPC分类号： G11B7/00

CPC分类号： G11B7/1267 ,  G11B7/00736 ,  G11B2007/0013

摘要： A recording method for an optical disc having at least three recording layers (11, 12, 13, 14), in which test recording areas are formed in the odd-numbered recording layers (11, 13) and the even-numbered recording layers (12, 14) in positions that are mutually non-overlapping in the thickness direction of the optical disc, the test recording areas in the odd-numbered recording layers are formed in positions mutually aligned in the thickness direction, and the test recording areas in the even-numbered recording layers are formed in positions mutually aligned in the thickness direction. The time for test recording for determining the optimal recording power can be shortened.

摘要翻译： 一种用于具有至少三个记录层（11,12,13,14）的光盘的记录方法，其中测试记录区域形成在奇数编号记录层（11,13）和偶数记录层（ 12,14）在光盘的厚度方向上彼此不重叠的位置中，奇数编号记录层中的测试记录区域形成在厚度方向上相互排列的位置，并且测试记录区域 偶数编号的记录层形成在厚度方向上相互排列的位置上。 可以缩短用于确定最佳记录功率的测试记录的时间。

公开(公告)号：US07969840B2

公开(公告)日：2011-06-28

申请号：US12182735

申请日：2008-07-30

申请人： Nobuo Takeshita ,  Osamu Tsukahara ,  Tomo Kishigami

发明人： Nobuo Takeshita ,  Osamu Tsukahara ,  Tomo Kishigami

IPC分类号： G11B7/00

CPC分类号： G11B7/1267 ,  G11B7/00736 ,  G11B2007/0013

摘要： A recording method for an optical disc having at least three recording layers (11, 12, 13, 14), in which test recording areas are formed in the odd-numbered recording layers (11, 13) and the even-numbered recording layers (12, 14) in positions that are mutually non-overlapping in the thickness direction of the optical disc, the test recording areas in the odd-numbered recording layers are formed in positions mutually aligned in the thickness direction, and the test recording areas in the even-numbered recording layers are formed in positions mutually aligned in the thickness direction. The time for test recording for determining the optimal recording power can be shortened.

摘要翻译： 一种用于具有至少三个记录层（11,12,13,14）的光盘的记录方法，其中测试记录区域形成在奇数编号记录层（11,13）和偶数记录层（ 12,14）在光盘的厚度方向上彼此不重叠的位置中，奇数编号记录层中的测试记录区域形成在厚度方向上相互排列的位置，并且测试记录区域 偶数编号的记录层形成在厚度方向上相互排列的位置上。 可以缩短用于确定最佳记录功率的测试记录的时间。

公开(公告)号：US20080291798A1

公开(公告)日：2008-11-27

申请号：US12182735

申请日：2008-07-30

申请人： Nobuo TAKESHITA ,  Osamu Tsukahara ,  Tomo Kishigami

发明人： Nobuo TAKESHITA ,  Osamu Tsukahara ,  Tomo Kishigami

IPC分类号： G11B7/12

CPC分类号： G11B7/1267 ,  G11B7/00736 ,  G11B2007/0013

摘要： A recording method for an optical disc having at least three recording layers (11, 12, 13, 14), in which test recording areas are formed in the odd-numbered recording layers (11, 13) and the even-numbered recording layers (12, 14) in positions that are mutually non-overlapping in the thickness direction of the optical disc, the test recording areas in the odd-numbered recording layers are formed in positions mutually aligned in the thickness direction, and the test recording areas in the even-numbered recording layers are formed in positions mutually aligned in the thickness direction. The time for test recording for determining the optimal recording power can be shortened.

摘要翻译： 一种用于具有至少三个记录层（11,12,13,14）的光盘的记录方法，其中测试记录区域形成在奇数编号记录层（11,13）和偶数记录层（ 12,14）在光盘的厚度方向上彼此不重叠的位置中，奇数编号记录层中的测试记录区域形成在厚度方向上相互排列的位置，并且测试记录区域 偶数编号的记录层形成在厚度方向上相互排列的位置上。 可以缩短用于确定最佳记录功率的测试记录的时间。

公开(公告)号：US20130044576A1

公开(公告)日：2013-02-21

申请号：US13642856

申请日：2010-12-15

申请人： Yusuke Kanatake ,  Tomo Kishigami ,  Toshiya Matozaki ,  Nobuo Takeshita

发明人： Yusuke Kanatake ,  Tomo Kishigami ,  Toshiya Matozaki ,  Nobuo Takeshita

IPC分类号： G11B7/1392

CPC分类号： G11B7/0945 ,  G11B7/08511 ,  G11B7/13925 ,  G11B2007/0013

摘要： An optical recording/reproduction method and device that can perform control for optimizing the amount of spherical aberration in a multilayered optical disc in a short period of time. When the objective lens is displaced in the focusing direction, the amplitude value of the focusing error signal detected just after leaving the focal position of a given first recording layer and the amplitude value of the focusing error signal detected just before passing through the focal position of a given second recording layer other than the first recording layer are measured with a particular spherical aberration, the amplitude ratio of amplitude values is calculated, the difference between spherical aberration and the optimal spherical aberration for the second recording layer is approximated as a function of the amplitude ratio, the optimal spherical aberration is calculated on the basis of this approximation, and the spherical aberration is set.

摘要翻译： 一种能够在短时间内对多层光盘中的球面像差的量进行优化的光记录再现方法和装置。 当物镜在聚焦方向上移位时，恰好在离开给定第一记录层的焦点位置之后检测到的聚焦误差信号的振幅值和刚刚通过焦点位置之前检测到的聚焦误差信号的振幅值 以特定的球面像差测量除了第一记录层之外的给定的第二记录层，计算振幅值的幅度比，将第二记录层的球面像差和最佳球面差之差近似为 基于该近似值计算最佳球面像差，并设置球面像差。

公开(公告)号：US20110317534A1

公开(公告)日：2011-12-29

申请号：US13203799

申请日：2010-04-07

申请人： Tomo Kishigami ,  Koichi Ikuta ,  Nobuo Takeshita ,  Yoshihiro Kiyose ,  Yusuke Kanatake

发明人： Tomo Kishigami ,  Koichi Ikuta ,  Nobuo Takeshita ,  Yoshihiro Kiyose ,  Yusuke Kanatake

IPC分类号： G11B27/36

CPC分类号： G11B7/00736 ,  G11B7/005 ,  G11B7/1267

摘要： According to a method for setting the laser beam power applied to reproduce information recorded on an optical disc, information recorded in a region on the optical disc is reproduced using three or more test reproduction powers (S22B), the number of reproductions until the degradation of the quality of the reproduced signal reaches a prescribed value is determined as the degradation number of reproductions (S22F), the relation between the test reproduction power and the degradation number of reproductions is approximated by a curve, and a reproduction power restricting the degradation of the reproduced signal quality to a predetermined amount or less over a certain guaranteed number of reproductions is determined (S25F). In optical reproduction from an optical disc on which information is recorded, the optimum power of irradiation for reproduction can be set, and degradation of the information due to the reproducing light can be prevented.

摘要翻译： 根据用于设置用于再现记录在光盘上的信息的激光束功率的方法，记录在光盘上的区域中的信息使用三个或更多个测试再现功率（S22B）被再现，直到再现的次数 将再现信号的质量达到规定值确定为再现的劣化次数（S22F），则通过曲线近似测试再现功率和再现的退化次数之间的关系，并且限制了再现的劣化 确定在一定的保证数量的再现的再现信号质量达预定量或更小的值（S25F）。 在从记录有信息的光盘进行光学再现时，可以设置用于再现的照射的最佳功率，并且可以防止由于再现光引起的信息的劣化。